Telegraph-key.



J. G. PETERSON & O. H. HUEBEL.

TELEGRAPH KEY.

APPLICATION FILED MAR. 1 7. 1917.

1,242,470. Patented Oct. 9,1917.

- mime 2 came. g

JOHANN- G. rETEEsoN AND-OTTO 7. HUEBEL, 0E JERSEY CITY, NEW JERSEY; zASSIGN oEs T0 MANHATTAN ELECTRICAL SUPPLY .co vrrANY, I c., 0F JEEsEY CITY, NEW JERSEY, AooEPoEArIoN 0E NEW JERSEY. i

TEL GRAP -KEY.

To all whom dimer concern." I

' Be it known that we, JOHANN Gr. PETER- sow andOT'ro H." HUEEEL, citizens of the United States, residing at Jersey City,in the county of Hudson and State of New Jersey, have invented'certain new and use ful Improvements in Telegraph-Keys, of which the following is a specification. This invention relates j to telegraph-keys. From time immemorial so far as we are aware, a' telegraph-key comprisesa lever provided with a contact or point, as it is sometimes knowni This contact or point is cooperative with a fixed contact point carried by the base of the key lever. I These oldcontacts or points are permanently connected with the lever and base respectively, so that as a consequence it is an exceedingly diflicult and sometimes practically-impossible matter'to replace-"them. -We eliminate this defect in an eminently satisfactory claims following said description. v

Referring to said drawings:

Figure 1 is a top plan view, and

Fig. 2 is a side elevation of .a telegraphkey involving the invention.

Fig. 3 is a transverse section on the line 33 of Fig. 2, looking in, the direction of the arrow and on a larger scale.

Fig. 4 is a detail view in perspectlve about on the scale of Fig. 3 of the two contacts and the carrier for the key-contact.

Like characters refer to like parts throughout the several figures of the drawlngs.

In Figs. 1 and 2 the numeral 2 denotes the base and 3 the lever of a Morse key, the base being provided with the usual adjuncts and means to attach it to a suitable support. On the upper side of the base are the lugs 4 through which are threaded screws 5,

a ed mma Patented 0013.9, 1917. I Application filed Maren-17,1917: Seria1No.155,46.'

having pointed sockets at their inner ends to'receive the'pivot-6 of the key-lever 31 Said key-lever is provided at its front end With'the customary button 7 and 'at its' rear end is furnished with the screw'8 by which the degree of movement of the key lever 3 can be regulated .as well understood. Through the lever 3between'its fulcrum or which'retra'cts the lever, the advance offsaid lever belng accomplished manually as is center of motion and the'button' is threaded ascrew 9 acted upon by 'thespring 10.

known The foregoing is a concise-descrip- 7 tion of afamiliar'form of key in'which our improvement can be advantageously incorporated, although obviou sly'we arenot re' stricted in this particular. The present type of key as is understood has a contact orpoint cooperative with a similar ,part' on the base,'fand we provide a" construction wherein either or both of' these contacts or points or as they are sometimes known contact points can be removed withoutdisassembling the key, which is a feature of importance. i

A contact or point "which ,can be advan; tageously carried by the key inayvary, al though that denoted in a ige neralway by 11 answers our requirements in a satisfactory manner. The contactor point carried by the base"inlikfashionmay'ivary within limits',althoughzthat denoted'by 12 has met our conditions. -The contaot*11' is as'i'llustrated removably connected in some convenient manner with carrier as 13 which in turn is preferably removably connected with the lever 3. As shown the carrier 13 compr1ses the base 14, the upright portion 15 and the overhanging part 16, the base 14 havinga threaded openlng to receive the threaded shank 17 of the removable contact or point 11.

This base 14 as shown fits against the under side of the key lever 3, the upstanding portion 15 being contiguous to one side of the key lever and the projection 16 overhanging said lever as'shown best in Fig. 3. To holdv the carrier 13 in place any convenient means may be provided, the screw 18 being shown,

for this purpose. Said screw is tapped through the arm 16 and its pointed lower end is adapted to fit anopening as 19 in the upper side of the key lever to thus aid in holding the carrier 13 in assembled relation with the key lever. This positioning of the carrier is further aided by the fact that the base 14 has lugs as 20 which overlie the side of the lever opposite the upstanding portion 15, all as shown fully in Fig. 3. When, therefore, the holding screw 18 is set, the contact or point 11 provided it be in assembled relation with the carrier 13, is properly held'in operative condition with the base or cooperating contact or point 12 in as secure a manner in fact as in the old and common structure. Should it be necessary to remove the point 11 for repairs or substitution, this can readily be accomplished without taking the carrier 18 from the lever 3-, by simply elevating the forward branch of the lever 3 sufiiciently to unscrew the shank 17 from the base 14. Or in lieu of this, and when occa sion requires, the carrier 13 as a unit with its contact can be removed by simply backing out the screw 18 enough to take its pointed end from the socket 19 when the carrier can be moved sidewise from the key lever. In both these cases either removal can be eifected easily and quickly without disassembling any of the keys. The same function, as will be hereinafter apparent can be accomplished with the normal fixed contact or point 12.

The base 2 has a perforation to receive the bushing 21, the head 22 of the bushing overlying the base, and the washer 23 of suitable insulating material being interposed between said head and the base. Through this bushing is extended the screw. 24, which receives at its lower end the nut 25 set in the counterbore 26 in the under side of the base, the insulating washer 27 being interposed between the nut and the bushing 21. The screw "2a has a head'28 which overlies the head 22, the conducting bridge 29 being interposed between the two heads and extending 'to the post 30 as'common. To the .post 80 is connected one of the leads. The

Copies of this patent maybe obtained for shape and which when the contact 12 is positioned bears against the head 28. By 616;

vating the key lever 3 sufliciently thecontact 12 can be easily unscrewed from its carrier 2 1.

What we claim is:

1. A telegraphic key comprising a lever, a carrier having a base furnished with an upstanding portion provided with an arm which overhangs the lever, the base being fined against the lower of the lever, a screw threaded through thearm and pointed at its lower 'end, the lever having an opening to receive the pointed end of the screw, and a contact reinovably carried by the base.

2. A telegraphic key comprising a lever, a carrier having a base furnished with an upstanding portionprovided with an arm which overhangs the lever, the base being titted against the lmver side, of the lover, a

screw threaded through the arm and pointed at its lower end, the lever having an opening .to receive the pointed end of the screw, and a contact threaded into the base, the base having projecting means which overlie the lever opposite said upstanding portion.

In testimony whereof we our signa tures in the presence of two witnesses.

JOHANN G. PETERSON; OTTO H. HUEFBEL.

Witnesses:

Cnir'roN liL NivisoN, ROBERT YOUNG.

five cents each, by addressing th fcommissioner Patents, Washington, D. G. Y p 

